What is a Crystal?

Crystals are solids that form by a regular repeated pattern of
molecules connecting together. In some solids, the arrangements of the building blocks
(atoms and molecules) can be random or very different throughout the material. In
crystals, however, a collections of atoms called the Unit Cell is repeated in exactly the
same arrangement over and over throughout the entire material.

Because of this repetitive nature, crystals can take on strange and
interesting looking forms, naturally. When we grow crystals we are separating all the
building block molecules into individual units in water and letting them fall naturally
into their appropriate place in the repetitive structure as the water evaporates.